Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     * This method takes Element object and String tagName as argument and
     * returns the value of the first child node it gets. If it does not find
     * any node it will return null.
     * 
     * @param element
     *            Element object
     * @param tagName
     *            Name of the tag.
     * @return the value of the first occurance of <code>tagName</code> tag in
     *         <code>element</code> object. Returns null, if doesn't find any.
     */
    public static String getTagValue(Element element, String tagName) {
        if (element == null) {
            return null;
        }
        NodeList nodes = element.getElementsByTagName(tagName);
        if (nodes == null || nodes.getLength() <= 0) {
            return null;
        }
        return getTagValue(nodes.item(0));
    }

    /**
     * This method takes Node object as argument and return the value of the
     * first child of the node.
     * <p/>
     * If there is no such node, this will return null.
     * 
     * @param node
     *            Node object
     * @return <code>String</code> returns the value of the node
     */
    public static String getTagValue(Node node) {
        NodeList childNodeList = node.getChildNodes();
        String value;
        if (childNodeList == null) {
            value = "";
        } else {
            StringBuffer buffer = new StringBuffer();
            for (int j = 0; j < childNodeList.getLength(); j++) {
                buffer.append(childNodeList.item(j).getNodeValue());
            }
            value = buffer.toString();
        }
        return value;
    }
}